==================================================================
BUG: KCSAN: data-race in console_unlock / printk_kthread_func

write to 0xffffffff85c34df0 of 1 bytes by task 1292 on cpu 1:
 console_kthreads_unblock kernel/printk/printk.c:336 [inline]
 __console_unlock kernel/printk/printk.c:2818 [inline]
 console_unlock+0x4d5/0x700 kernel/printk/printk.c:3075
 con_shutdown+0x47/0x50 drivers/tty/vt/vt.c:3433
 release_tty+0x80/0x500 drivers/tty/tty_io.c:1593
 tty_release_struct+0x93/0xb0 drivers/tty/tty_io.c:1705
 tty_release+0x980/0x9d0 drivers/tty/tty_io.c:1865
 __fput+0x292/0x510 fs/file_table.c:317
 ____fput+0x11/0x20 fs/file_table.c:350
 task_work_run+0x8e/0x110 kernel/task_work.c:177
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x124/0x130 kernel/entry/common.c:169
 exit_to_user_mode_prepare kernel/entry/common.c:201 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x6a/0x90 kernel/entry/common.c:294
 do_syscall_64+0x37/0x70 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

read to 0xffffffff85c34df0 of 1 bytes by task 1399 on cpu 0:
 printer_should_wake kernel/printk/printk.c:3731 [inline]
 printk_kthread_func+0x481/0xb60 kernel/printk/printk.c:3795
 kthread+0x1a9/0x1e0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30

value changed: 0x01 -> 0x00

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 1399 Comm: pr/netcon0 Tainted: G        W         5.18.0-syzkaller-13842-g952923ddc011-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================